The world's largest functioning triple-expansion steam engine is an unbelievably massive beast of a machine. For 77 years, the 62-foot-high engine—weighing in at 1,000 tons!—powered gigantic flywheels and crankshafts that pumped millions upon millions of gallons of water from west to north London. It was…»7/31/14 2:57pm 7/31/14 2:57pm

Who invented the first car? If we're talking about the first modern automobile, then it's Karl Benz in 1886. But long before him, there were strange forerunners to the today's cars, including toys for emperors, steam-powered artillery carriers, and clanking, creaking British buses. »6/28/11 6:30am 6/28/11 6:30am